Shelf attachment for a mail sorting desk



FIG. 1 is a perspective view of a shelf attachment for a mail sorting desk, showing our new design, the broken lines are for illustrative purposes only;

FIG. 2 is a rear perspective view;

FIG. 3 is a top plan view;

FIG. 4 is a bottom plan view;

FIG. 5 is a front elevational view;

FIG. 6 is a rear elevational view;

FIG. 7 is a right side elevational view;

FIG. 8 is a left side elevational view;

FIG. 9 is a perspective view of a shelf attachment for a mail sorting desk, showing an alternate embodiment of our new design;

FIG. 10 is a top plan view of the alternate embodiment; and

FIG. 11 is a bottom plan view of the alternate embodiment.

FIGS. 2-11 have been drawn to an enlarged scale with respect to FIG. 1. 

The ornamental design for a shelf attachment for a mail sorting desk, as shown and described. 